Ball-bearing.



PATENTED MAY-29, 1906 H.00NRAD.

BALL BEARING. APPLICATION FILED AUG.13. 1904.

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the ordinary lubri'cantlfails 2 5 of said partition device,

It is immaterial whether the central part I spring serve to release theoil when necessa It is, however, very important, especia 1y where thedevices are onl used-as a spare lubricating means, that a lilbricant ofmore or less solid consistency andhaving a suitably-high melting-pointshould be stored in said devlces. In this case as long as the regular suply of lubricant and the temper ature of t e parts is n0rmal,fl-thespare lubricant in the artition de-viees' will either not be broughtlnto use at all or it will only be used to a limited extent to workproperly and the temperature" of the parts therefore rises, the sohdlubricant fstored in the partit1on deviceswill become and thus becapable of .su'

m'olre or iless flluid, p ymg or a' ong ubric'ant, and the space oftime' the required v in proper working bearings will thusbe kept order)Havin now-particularly described and ascertainef the nature'of' the saidinvention When, however,

and in what manner the same is to be'performed, I declare that what Iclaim is- '1, In a ball-bearing, a yielding lubricating deviceinterposed between adjacent balls, said balls being free to move towardeach other and .to compress the lubricating device between them.

vice having a pair of end plates movable tomaterial carried between saidplates.

Vice having a pair of end lates, a yielding connection between such pates, and a lubri eating material carried bysaid connection.

4. 1 n a ball-bearing, a lubricating device ner raceway.

, ROBERT CONRAD. Witnesses:

WOLDEMAR HAUPT,

HENRY HAsPER.

ward and from each other, and a lubricating 3. In a-ball-bearing, alubricating device interposed between adjacentba'lls, said deinterposedbetween adjacent balls, said de- 2. In a ball-bearing, a lubricatingdevice interposed between adjacent balls, said deaving a pair of endplates inclosing a

